Method of and means for burning coal



(No Model.)

J. T. ROBBINS.

METHOD OF AND MEANS FOR BURNING GOAL, &c., IN STOVES AND PURNAGES.

N0.'366,255. Patented July 12,1887.

N PETERS. Vholo-Lilhugraphar, Wnhmglon. D. Q

UNITED STATES PATENT OFFICE.

JOSEPH T. ROBBINS, OF NEVTON, IO\VA.

7 METHOD OF AND MEANS FOR BURNING COAL, &c., lN STOVES AND FURNACES.

SPECIFICATION forming part of Letters Patent No, 366,255, dated July 12, 1887.

Application filed December 19, 1885. Serial No. 186,147. (No model.)

.To aZZ whom it may concern:

Be it known that I, J OSEPH T. ROBBINS,,2L citizen of the United States of America, and a resident of Newton, in the county of Jasper and State of Iowa, have invented a new and useful Method of and Means for Burning Goal, 850., in Stoves and Furnaces, of which the following i a specification.

My invention consists in the construction and operation of a stove or furnace, as hereinafter set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which--- Figure 1 is a side view of a stove (adapted to practice my method) having parts broken away. Fig. 2 is a vertical section through the line y y of Fig. l,viewed from behind the stove. Fig. 3 is a downward view through the line m w of Fig. 1.

A represents the tubular base, and B a de' pressed recess in said base adapted to receive an ash pan or drawer, G.

D is an annular deflector that extends from the circular opening in the top of the base to its bottom D D is avertical partition that extends through the base from the deflector and inner wall, D, to the outer wall and rear center of the base.

F is a cylinder fitted in the opening in the top of the base A to produce a combustion chamber. It has an annular flange, F", near its top to support a grate, F and an annular shoulder, F", at its top to support a vertical extension.

G is the base of a smoke-flue, formed on or fixed to the rear side of the base A and cylinder F. One side of this base has an air-tight cover, G and a horizontal extension, G that produces a passage-way to allow the products of combustion to pass from the combustionchamber F into the annular chamber in the base on one side of the vertical partition D to be directed around the deflector D to escape through the opening G in the base G of the flue, as indicated by arrows in Fig. 2.

H is a body or casing that produces a fuelchamber and coldair chamber fitted to the top of the cylinder and combustion-chamber F. Hrepresents a door in front of the said body or casing H, through which fuel is introduced.

H is a perforated top, through which cold air is admitted. The casing H and cylinder F joined. together produce a shouldered case or body having openings at its top to admit air and an opening to admit fuel, and the grate resting upon the annular shoulder divides the complete case or body, as required, to produce a fuel-chain ber above the grate and a combustion-chamber under the grate.

J is an open-ended air-conductor and superheater that extends from an opening in the body or casing H immediately under the door H to anopening in the cylinder at a pointbelow the grate.

Corresponding conduits and superheatcrs, J are combined with the opposite sides of the stove, as indicated by dotted lines in Fig. 1, to convey and superheat air and gases from the top of the fuel-chamber and from above the fuel in the chamber, and to discharge the same into the combustion chamber under the grate.

K is a radiator and smokeflue combined, fitted and fixed to the top of the base G, having an opening, G, at one side of its. top.

K is-a vertical partition that extends from the partition D in the base A to the converging top of the radiator.

K is a corresponding and parallel partition that extends 'from the lower portion of the radiator to the converging top, as clearly shown in Fig. 2.

L is a damper pivoted at the top of the partition K in such a manner that it can be turned from one side of the base of the smoke-flue L at the top of the radiator to the other.

m is a tube connecting the upper portion of a m, and the damper L, and close the damper S tion-chamber and its extension G into the hollow base and around the inner Wall and deflector D, and from thence up through one of the compartments of the radiator and over the oartition K down a ain throu h the central compartment, and under the partition K into the third compartment, from whence it passes upward into the escape-flue connected with the top of the radiator. The quantity of cold air admitted in the top of the fuelchamber and regulated by means of a register combined therewith passes through the fuel and the conduits and superheaters J and J to feed the fire as required to produce corn.- bustion at the bottom of the fuel-chamber and the under particles of fuel on the top of the grate. The air thus admitted in the top carries along all gases and odors fromthe fuel in the fuel-chamberinto the combustion-chamber, to aid in burning the fuel and utilizing all the valuable products of combustion by preventing the generation and escape of black smoke and soot. The circulation of the heat thus produced through the base of the stove, and from thence in reverse ways through the radiator, diffuses the heat over and through a large area of heatingsurface, as required, to utilize the heat in warming the atmosphere in a room economically and without the annoyances and dangers incident to the generation and escape of offensive odors, gases, black smoke, and soot. XVhenever the base of the. stove is opened while the fire is burning, the damper S in the tube 1' should be opened to prevent the escape of gas.

I claim as my invention- 1. The combination of a shouldered case or body having openings at its top to admit air and an opening to admit fuel, a grate, acylinder below said case or body having a drattfluc' at its bottom and a draft'i'lue under the grate in its top and open-ended tubes extending 1 from the shoulder in the top of said case or with the flue-base, to operate in the mannerset forth, for the purposes stated.

3. The combination of a casing or body, a flue leading from its lower portion, a grate dividing it into a fuel-chamber above and a combustion-chamber below the grate, and a superheating-conduit, J, exterior to the body or casing, opening at its upper end into the chamber above the grate and at its lower end into the chamber below the grate, substantiall y as described. I

4. The combination of a casing or body having an opening in its top, a flue leading from its lower portion, a grate dividing it into a fuelchamber above and a combustion-chamber below the grate, superheating-conduits 'J exterior to the body or casing, opening at their upper endsinto the chamber above the grate and into the chamber below the grate at their lower ends, and a draft-flue at the top of the said chamber under the grate, substantially as shown and described,for the purposes stated.

5. An improved stove consisting of a base, A, having an inner deflecting-wall, D, ahorizontal partition, D and a vertical partition, D, a cylinder and combustion-chamber, F, having fines m and G, a flue and'radiator base, G, having a cover, G, a fuel-chamber,

H, above the combustion'chamber and having openings in its top, a grate separating the fuel-chan1ber and combustion-chamber, one or more superheating-conduits extending from the upper portion of the fuel-chamber to the combustion-chamber, and a radiating-flue, K, having fixed partitions K and K, and a chamber, L, substantially-as set forth.

' JOSEPH T. ROBBINS. Witnesses:

E. O. OGG, A. L. NEWTON. 

